Updated. For a limited time, Barnes & Noble is extending member prices on select books, taking as much as 80% off the original list price. This is a great deal and some of the lowest prices we could find on select titles from reputable websites. The Gut Flush Plan (from the author of the Fat Flush), lowers from $22.95 to $4.48, The Reagan Diaries by Ronald Reagan reduces from $35 to $7.18 and Deceptively Delicious: Simple Secrets to Get Your Kids Eating Good Food (pictured) by Jessica Seinfeld is marked down from $12.95 to $9.32. Shipping is from $2.98 and sales tax is charged in most states. Spend $25 and your order ships for free. Spend $75, order by 11:59pm EST on 12/21 and B&N upgrades your shipping for guaranteed delivery by Christmas.